Mining machine



July 31, 1928. 1,679,127

C. B. OFFICER MINING MACHINE Original Filed Dec. 5. 1917 2 Sheets-Sheetl Wm ab Patented J uly 31, 1928.

,- UNITED STATES CHARLES BRAND orrronn, on WINNETKA, armor AssreNon TOSULLIVAN MA- GHINERY COMPANY, A oonPonArIoN on MASSACHUSETTS.

MINING iviA'onrNn.

Application filed December 5, 1917, Serial No. 205,648. Renewed October10, 1 925.

My invention relates to mining machines.

It has for its object to provide improved means whereby a mine, face maybe cut at increased speed and with greater facility. A further object ofmy invention is to provide improved means whereby a lierf may be cut inthe face of an entry in such a manner as to facilitate the shooting andloading of coal, at the same time that the area of the kerf, and thetime consumed in cutting the same, is materially reduced. I attain theseobjects by providing an improved mechanism adapted to be readilytransported about the mine to and from the different places to be cutand including improved means whereby the same may cut inan improvedmanner a vertical or shear cut in the face extending in entry work fromsubstantially the top thereof to the'entry bottom and preferablydisposed along the center line of the entry, Q

In the accompanying drawings, I have shown for purposes of illustrationtwo embodiments which my invention may'assume in practice. r

In these drawings,

Fig. 1 is a side elevation of one form of my improved machine ready tobe adjusted into cutting position in an entry.

Fig. 2 is a plan view of the machine shown in Fig. 1, the same alsobeing equipped with an angling jack.

Fig. 3 is a rear elevation of the machine shown in Fig 1, the feed chainbeing omitted to facilitate illustration. V

Fig. 4 is an elevation of the'face-of the entry showingthe kerfs adaptedto be cut therein and'the shot holes.

Fig. 5 is a detail view of the double acting jack shown in Fig. 2. Y I

i Fig. (5 is a side elevation of a modified form of the machine shown inFig. 1, the ltei'f cutting element being shown in'position to makeitssumping cut;

Fig. 7 is a diagrammatic view of the ma chine shown in Fig. 1 when thesame is in transport position, a vertical section of the entry beingshown.

v i Fig. 8 is a similar view showing themachine ready to beginits's'umping cut.

Fig. 9 is a similar View showing the ma-, chine at the completion of itsstarting cut. v I

i 1 plane tobringitsextremity into alignment with either the top or thebottomof the and ready to begin its swinging cut.

Fig, 10 is a s milarview show ng the machine at the completion of itsswinging cut.

invention of one Morris P- Holmes.

Fig. 11 is a similar view showing the machine "at the completion of itswithdrawal cut.

F ig. 12 is a similar view showing the ma chinec'onnected in such amanner as to be propelled longitudinally by its feeding elefeeding andcutter chain driving mechanism,

the inachine in my improved construction be ng mounted edgewise or uponits side in such a manner as to dispose its cutter bar 2 vertically andcause its cutter chain 3 to run ina vertical plane. In a preferred form,this machine is also disposed at such a height as to bring its cutterbar when horizontally disposed substantially opposite the center of thevein.

As shown, the machine is fixed in suitable spaced, upstanding flanges 4and 'supported on a rear rotary support or turntable 5 and a fronttransversely disposed arcua'te guiding and supporting member 6, each inturn supported on a truck frame 7 This truck frame is-also mounted onwheels 8 adapted to inoveupon the track 9 and to be driven throughsuitable driving connections 10 preferably including a clutch mechanism11, from a shaft 12 in turn operatively 'con nected to and rotatable ineither direction at either of two different predetermined speeds withthe feed sprocket 13 of the machine; The latter is, as usual,controllable by the motor controlling mechanism including the controllerhandle l t,- the friction U controlling mechanism including a frictionclutch controlling lever 15, the speed controlling lever 16, and thereverse controlling lever 16; Thedriving of the'truck from the feedingmechanism of the mining'machine is not broadly my invention, but is theThe bar 2 of this machine is also pivotally connected to the front endof the machine frame and movable about a horizontal pivot 17 thereon, insuch a manner that the bar may assume the transport position shown 1nFig. 1 or be adjusted about its pivot in a vertical entryfloclzing meansincludii'lg registering Ill).

perforations 18 in the frame and bar and been advanced into the coalsubstantially a locking pin 19 receivable in said perforations, beingprovided to maintain the bar in its different positions of adjustment.It will also be observed that means for adjusting the bar about itspivot 17 are provided in the form of a feeding element, herein shown asa flexible element or chain 20 operatively connectable to a fixed part21 on the bar 2 and having its rear end disposable around either idlerof a pair of idlers 22 located at opposite corners of the rear end ofthe frame and also around the adjacent driving sprocket 13, the positionof the chain depending upon whether it isdesired to raise or lower thebar. As in the usual construction, it will of course be understood thatthe motor of the mining machine 1 is operatively connected to both thecutter chain 3 and the feed sprocket 13 in the usual manner to providepower to rotate these elements, which are driven from opposite ends ofthe motor, and that a suitable clutch mechanism including the reverselever 16 and the controlling member 23 is provided tocontrol theconnection of the chain 3 to the mining machine.

In the operation of my improved machine, the same is preferably drivenby its truck driving mechanism and under its own power down the track 9and into the entry to be extendechthe track preferably being so laidthat the bar is disposed in the center of the entry. During thistransporting operation, the rear end of the feeding element 20 iswithdrawn from the sprocket 13, as shown in Fig. 7, to permit the latterto be freely rotated to propel the shaft 12, and the bar 2 preferablyoccupies the position shown in that figure, the same remaining in thatposition until the end of the bar has been brought substantiallyopposite the end of the track and substantially into engagement with thevertical face of the entry to be out. When this position has beenreached, the

operator first threads the chain 20 over the upper idler 22 and aroundthe driving sprocket 13 and then, through suitable operation of theusual feed controlling elements, causes the feed sprocket 18 to berotated in such a manner as to draw in its flexible feeding member 20and, after the pin 19 has been withdrawn, cause the bar 2 to be swung upuntil its extremity is disposed substantially in the plane of the top ofthe entry, i. e. until it occupies the position shown in Fig. 8, whichis the position which the parts occupy when the machine is ready to makeits starting out. In a preferred form, the bar is then locked in thisposition by means of the reinsertion of the pin 19. The sumping cut isthen made through operation of the clutch 11, insuch a manner as tocause the truck 7 to be prov pelled along the track 9 until the bar hasthroughout its length, and until the truck 7 has reached the position atthe end of the track rails indicated in Fig. 9. In this position of theparts, the truck 7 is next made stationary, as for instance by the useof one or more suitable jacks 24. Then, through a reversal of theflexible connection 20 so that the same extends back beneath the machineand around the other idler 22 and the sprocket 13, the bar 2 is swungdownward from the position shown in Fig. 9 to the position shown in Fig.10 to cut its swinging or vertical cut extending in the form of an arcfrom the top of the entry to the bottom thereof. As soon as this cut iscompleted,the braking mechanism is preferably released and thereafter,through the connection of the clutch 11 and the reversal of the drivingsprocket 13, the machine is propelled backward while the cutter chain 3is operating, from the position shown in Fig. 10 to the position shownin Fig. 11, in such a manner as to make its withdrawal cut in which itcuts out the remainder of the vertical kerf. Obviously, if desired,however,

'instead of using the truck driving mechanism as. above described inorder thus to propel the machine toward or from the face in making itsstarting or withdrawal cuts, the flexible connection 20 may be utilized,the samethen being connected in a well known manner, as shown in fulllines in Fig. 12, toa point in advance of the machine and adjacent theface during the starting cut or, as shown in dotted lines in thatfigure, to a point in rear of the machine during the withdrawal cut.

During the use of my improved construe tion and while the cutter bar iscutting its vertical kerf in the face of the entry, cer tain impuritiesmay be encountered, and I have accordingly provided improved meanswhereby an operator may cut around the same. These means preferably, asshown herein, include the turntable mounting 5 of the machine upon thetruck, and preferably also comprise the guiding and supporting means 6disposed beneath the front end of the machine in an are preferablystruck from the same center as the machine pivot, and cooperating meansof suitable form whereby the machine may be adjusted about its pivotduring cut-ting. As illustrated, these cooperating means assume the formof a double acting jack having its elements 25 and 26 pivotallyconnected to themachine and truck, respectively, at 27 and 28, and 0peratively connected by a reversely threaded turnbuckle 29. Thus, it willbe observed that by adjusting the turnbuckle 29, the angle of themachine relative to the truck and the lateral position of the bar duringits out,

may be regulated as desired. For example, referring to Fig. 4, it willbe noted that the llli my improved mechanism, the operator may alsoremove impurities by utilization of these means or the meansfor anglingthe bar relative to the machine, or by the use of either of these meansin'conjunction with the means for propelling the truck back and forth.For example, should an impurity be encountered during the starting out,the same may readily be removed by withdrawing the bar and inserting thesame directly into the coal while in its transport position illustratedin full lines in Fig. 1, thereby weakening the coal beneath the impurityin such a manner as to enable the bar when again inserted above the sameto more read ily tear out the obstruction. Conversely, the same methodof procedure may be followed when an impurity is encountered when makingthe withdrawal cut, or, if desired, when making that cut the: bar may bereturned to transport position and withdrawn and insertedwhen disposedat an angle, as during the starting cut, in such a manner as to tearaway the coal on the opposite side of the obstruction and thus permitthe same to be more readily removed. If desired, the bar may also beinserted atother angles by providing any desired number of perforations18 adapted to receive the pin it); In the use of my improvement, it willalso be evident that through the provision of the turntable 5 themachine may swing into ava-riety of different angular positlons toenable it to make swinging cuts at different angles, and

readily be locked in its different positions, by

simply providing a series of perforations 31 in said turntable and apin'32 adapted to be received in any one of the same and a suitablecorresponding perforation, or perforations, in the truck frame -7.

In' Fig. 6 I have illustrated a modified form of the construction shownin the remaining figures of the drawing.- In this construction, it willbe noted thatthe mining 'machine 1 is of the so-called room and pillartype and has its cutter bar Zrigidly' connected thereto as distinguishedfrom pivotally connected thereto, as in a machine of pivot 33 disposedat a point adjacent the center of gravityv of the'machine and supportedon suitable spaced upstanding oppositely located supports 34 carried onthetruck 7, and preferablyswiveled thereon on a suitable swivelconnection 35. In this construction, it will be observed that inaddition to the feed sprocket 13 and the idlers 22, other cooperatingidler sprockets 36, 37, and 38are provided which are adapted to receivethe flexible feeding element 20 in different angularpositions'of themachine determined by the location of one or more pins 39 in suitableregistering apertures L0 in the supports 34 and the machine frame.

In this construction, as in the preceding construction, the machine maybe transported from place toplace when its bar is in a horizontaltransport position:corresponding to that shown in Fig. 1. However, in"this construction, when it is desired to adjust the bar from thisposition into its various operative positions, it will be observed thatthis is accomplished by threading the flexible feeding element. 20 indifferent relations and attaching the end of the same to a suitablesupporter hook 41 disposable at diflerent points in thefaeeorlongitudinally of the entry. For instance, in first swinging the bar upto the position shown inFig. 6, the chain is preferablyextendedaroundunder the sprocket. 13 and over the upper idler 22 and thendownward over the idler v38 to the member 41, which is then disposedadjacent the bottom and in 'rear of the 1 machine. During the startingcut, the entire mechanism may obviously be propelled longitudinallytoward the face by arranging the parts as shown. To swing the bardownward in making its swinging out, the chain may, obviously, also be.passed over the lower idler 22 and the idler 37 to-the member 41 whichis then disposed at a point substantially on the level ofthe bottom andin ad vance of the machine. Finally, in making the withdrawal cut,- thechain may be passed around the lower idler 22 and the front idler 37 tothe member' ll which is-then disposed substantially on the level ofthebottoin but in rear of the machine. In this construction, however, itwill be observed that itis necessary to drill the bottom or face toreceive the member 41, or to attach the'same or the chain to a jack, andfor this reason theself -contained form of the invention first describedis preferred. Obviously, in this modifiedconstruction, however, anysuitable truck driving mechanism of the type hereinabove described may,if desired, be utilized to propel the truck about, the mine or topropelthe same during the reciprocating movements 'in' its cutting.operation and thus avoid the necessity for-drilling the face orthebottoni to receive the member 41 before making these movements.

Asa result of my improvement, and particularly of-the preferred formof'the same, it will be observed that. it is possible toadvancethe-entry ver-yirapidly, the machine being adapted to rapidtransport from place to place, and during the cutting operation anism,in the preferred form of my invention, being self-contained andrequiring only relatively simple adjustments. It will also be observedthat during the actual operation of cutting a' kerf the area of the kerfin an entry of a given. size is materially reduced as compared with thearea of the k'erf required to be cut by an undercutter or any machine inwhich the cutting element moves transversely of the entry. Attention isalso directed to the fact that through the use of my improvedconstruction it is possible to shoot the coal clear from the mine bottomso that the loader may work directly upon the mine bottom without thenecessity for digging up any unshot coal therefrom in a separateoperation as is required when the kerf is inserted transversely at apoint above the mine bottom and the shots are placed in the coal abovethe kerf as ordinarily occurs with a transverse kerf cutter operatingabove the mine bottom. As a result of my improved construction it willalso be observed that it is possible to utilize standard mining machinesof either the'longwall or room and pillar type as shearing machines,without materially changing the-machine or in any way destroyingitsetticiency in its original capacity, standard machines as a result ofmy improvement being readily adapted to use in this connection andto usethereafter as bottom cutters when desired. These and other advantagesof'my improved construction will, however, be clearly apparent to.

those skilled in the'art.

While I have in this application specifically described two embodimentswhich my invention may assume in practice, it will be understood thatthese forms of the same are 7 with said bar for swinging the same abouttively connectable with said-feeding mecha nism for moving sald truck ineither d1recits pivot, and truck driving mechanism cooperating with saldtruck wheels and operation.

2. In a mining mechanism, in combination, a machine having a cutter barprovided with elements moving in an orbit having major and minor axesand provided with means for driving saidcutting elements and for movingsaid machine over the mine bot- .tom during cutting operation, saidmachine being operative to slide on the bottom with the orbit of itscutting elements parallel to a horizontal plane, and a mounting for saidmachine comprising a portable member and means thereon for supportingsaid machine with the orbit of its cutting elements parallel to avertical plane, said mechanism including means whereby said bar may bemoved towards and from a working face while maintaining a uniform anglerelative thereto or may be caused to move while said ma chine remainsstationary-in such manner that its major axis may traverse an angle suchthatin its extreme positions it will occupy positions respectively aboveand be low a horizontal line which is in the plane of the angle andpasses through its vertex.

3. In a mining machine, a truck, a selfpropelled machine disposededgewise thereon including a forwardly extending cutter bar havingcutting elements which circulate parallel to a vertical plane about theperiphery thereof and pivoted on a horizontal pivot at the front end ofsaid truck, feeding mechanism operatively connected'with ent directions.

4. In an entry driving machine, a wheeled truck, a self-propelled miningmachine disposed edgewise on said truck including a pivoted planeforwardly extending cutter bar movable about a horizontal pivot atthefrontend of said truck, means for swinging said'barin a vertical planeabout its pivot, and means for moving said truck in differentdirections, each of said last mentioned means being operativelyconnected to the same source of power.

5. In a mining machine, a truck, a selfpropelled mining machinedisposed, edgewise thereon including a cutter bar provided with cuttingelements circulating in a plane orbit and pivoted on a horizontal pivotat the front end of said truck, feeding mecha nism operatively connectedwith said bar for swinging the same about its pivot, and truck wheeldrivingmechanism operatively connectable with said feeding mechanism forfeeding said truck in either direction to feed the bar into the work or.to withdraw the same. i

6. In an entry driving machine, a wheeled truck, a self-propelled miningmachine disposed edgewise on said truck including a pivoted fiat cutterbar movable about a horizontal pivot at the front end of said truck,means for swinging said bar in a vertical pivoted on a'uhorizontal pivotat thefront 7 end of sa1d truck, feedlng mechanism operatively connectedwith saidbar fors winging the same about its pivot, means for swingingsaid cutting mechanism acrosst-he face ofthe entry, and truck wheeldriving mecha-' nism operatively conne ctable withsaid feed ingmechanism for moving said truck in either direction. a

' 8. In an entry driving machine, a wheeled truck, a self-propelledmining machine dis posed edgewise on said. truck including a pivotedfiat cutter bar movable aboutahorizontal pivot at'the front end of saidtruck, means for swingingsaid bar in a vertical plane about its pivot,means for swinging said cutting mechanism across the face of theentry,'a'nd means for moving said truck in either direction, each ofsaid last mentioned means being operativelyconnected' to the same sourceof power. i i v 9. In a mining machine, a truck movable over a trackway,a self-propelled mining machine disposed edgewise' thereon including aplane forwardly cutter bar, means forming apivot for sa d bar supportedby. said truck and located above the latter, and means for swinging saidbar about its pivot to insert a vertical kerf in an upstandin face whichis perpendicular to the line of'the trackwayf 7' 10. In a miningmachine, a truck movable over a trackw'ay, a self-pro elled miningmachine supported edgewise t ereon includ'- ing a flat forwardlyextending cutter bar,

' orted by said truck and located above the atter, and feeding meansoperatively con nected to said machine for moving said bar bodily andalso about vits' pivot to insert a vertical kerf in a-n'upstanding faeewhich is perpendicular to the line of thetrackway.

1.1. In a mining machine, a'truck movable over a tracltway, aself-propelled 'mining machine supported edgewise thereon includ ing aflat forwardly extending cutter bar, means forming a" pivot' for' saidbar supported by said truck and located above the latter, means forswinging's'aid' bar about its pivot to insert a vertical kerf in anupstanding face which is perpendicular to the of the trackway, and aswivel mountinginterposed between said machine and said truck.

12. In a mining machine, a truck movable over a trackway, aself-propelled mining means forming a pivot for said barv sup a"transversely disposed pivot relative towhich said bar isvmo-vable inavertical plane, and means connectable to sa1d feeding mechanism forselectively moving said barabout its pivot or bodily therewith relativeto a face. 14. In a mining machine, a wheeled truck movable over atrackway, a mining machine supported edgewise thereon and comprisingfeeding and cutting mechanism, thelatter including a forwardly extendingcutter bar, means swiveled on said truck and forming a transverselydisposed pivot relative to which said baris movable in a vertical plane,and means including operative connections to said feed mechanism forselectively moving said bar about its pivot or bodily with the latterrelative to said trackw y a a a v v 15 In amining machine, a wheeledtruck movable over a trackway, a mining machine supported edgewisethereonand comprising feeding and'cu tting mechanism, the latterincluding a forwardly extending cutterbar,

means supported by' said truck and forming a transversely disposed pivotrelative to which said bar is movable in a vertical plane, operativeconnections for moving said bar about its pivot, and truck wheel drivingmechanism for moving said pivot: relative to sa d 'trackway. I

6. In a mining machine, a wheeled truck movable over a trackway, aunitary mining machine supported edgewise thereon com pris ng'feedingand cutting mechanism, the former including means for effecting bodilyfeeding movement of the machine during cutting and the latter includinga forwardly extendingcutter bar, means supported by said truck forming aeutter'bar pivot relative to which said bar is movable, and means formoving said bar relative to an upstanding face toinsert a vertical kerftherein.

17. In a mining apparatus, a wheeled truck, cutting mechanism thereonincluding cutter bar pivotally mounted on said truck meanson said truckfor effecting swinging of said bar about its pivot including a rotatablemember adapted to cooperate directlye with flexible means oonnectible toswing the bar, and truck wheel driving mechanism including a drivingelement coaxial with said rotatable member and connectible to the latterto efl'ect truck propulsion.

18. In a mining apparatus, a wheeled truck, cutting mechanism thereonincluding a cutter bar pivotally mounted on said truck for swinging in avertical plane, means on said truck for efi ecting swinging of said barabout its pivot including a rotatable member adapted to cooperatedirectly with flexible means connectible to swing the bar, and truckwheel driving mechanism including a driving element coaxial with saidrotatable member and connectible to the latter to effect truckpropulsion.

19. In a mining apparatus, a wheeled truck, cutting mechanism thereonincluding a cutter bar pivotally mounted on said truck, means on saidtruck for eflecting swinging of said bar about its pivot including arotatable member adapted to cooperate directly with flexible meansconnectible to swing the bar, and truck wheel driving mechanismincluding a driving element coaxial with said rotatable member andflexible connections between said element and said truck wheels.

20. In a mining apparatus, a wheeled truck cutting mechanism thereonincluding a cutter bar pivotally mounted on said truck for swinging in avertical plane, means on said truck for effecting swinging of said barabout its pivot including a rotatable member adapted to cooperatedirectly with flexible means connectible to swing the bar, and truckwheel driving mechanism including a driving element coaxial with saidrotatable member and flexible connections between said element and saidtruck wheels.

. 21. In a mining apparatus, a wheeled truck, cutting mechanism thereonincluding a cutter bar pivotally mounted on said truck, means on saidtruck for effecting swinging of said bar about its pivot including arotat able member adapted to cooperate directly with flexible meansconnectible to swing the bar, and truck wheel driving mechanismincluding a driving element rotatable at equal angular rates with saidrotatable member and operative on rotation to effect truck wheel drive.

22. In a mining apparatus, a wheeled truck, cutting mechanism thereonincluding a cutter bar pivotally mounted on said truck, means on saidtruck for effecting swinging of said bar about its pivot including arotatable member adapted to cooperate directly with flexible meansconnectible to swing the bar, and truck wheel driving mechanismincluding a driving element rotatable at equal angular rates and in likedirections with said rotatable member andv operative on rotation toeffect truck wheel drive.

23. In a mining apparatus, a wheeled truck, cutting mechanism thereonincluding a cutter bar pivotally mounted on said truck, means on saidtruck for effecting swinging of said bar about itspivot including arotatable member adaptecl to cooperate directly with flexible meansconnectible to swing the bar, and truck wheel driving mechanismincluding a driving element rotatable at equal angular rates with saidrotatable member and flexible connections between said element and saidtruck wheels.

24. In a mining apparatus, a wheeled truck, cutting mechanism thereonincluding a cutter bar pivotally mounted on said truck, means on saidtruck for effecting swinging of said bar about its pivot including arotatable member adapted to cooperate directly with flexible meansconnectible to swing the bar, and truck wheel driving mechanismincluding a driving element rotatable at equal angular rates and in likedirections with said rotatable member and flexible connections betweensaid element and said truck wheels. r

25. In a mining apparatus, a wheeled truck, cutting mechanism includinga cutter bar on said truck, means between said truck and bar whereby thelatter can move to make a swinging cut, means on said truck foreflecting such movement of said bar including a rotatable member adaptedto cooperate directly with flexible means connectible to swing the bar,and truck wheel driving mechanism including a driving element coaxialwith said rotatable member and connectible to the latter to effect truckpropulsion.

26. In a mining apparatus, a wheeled truck, cutting mechanism includinga cutter bar on said truck, means between said truck and bar whereby thelatter can move to make a swinging cut ina vertical plane, means on saidtruck for eflecting such movement of said bar including a rotatablemember adapted to cooperate directly with flexible means connectible toswing the bar, and truck wheel driving mechanism including a drivingelement coaxial with said rotatable member and connectible to the latterto eflect truck propulsion. p

27. In amining apparatus, a wheeled truck, cutting mechanism including acutter bar on said truck, means between said truck and bar whereby thelatter can move to make a swinging cut, means on said truck foreffecting such movement of said bar including a rotatable member adaptedto. cooperate directly with flexible means connectible to swing the bar,and truck wheel driving mechanism including a driving element coaxialwith said rotatable member and flexible connections between the same andsaid truck wheels.

28. In a mining apparatus, a wheeled truck, cutting mechanism includinga cutter bar on said truck, means between said truck and bar whereby thelatter can move to make a swinging cut in a vertical plane, means onsaid truck for effecting such movement of said bar including a rotatablemember adapted to cooperate directly with flexible means connectible toswing the bar, and truck wheel driving mechanism including a drivingelement coaxial with said rotatable member and flexible connectionsbetween the same and said truck wheels.

29. In a mining apparatus, a wheeled truck, cutting mechanism includinga cutter bar on said truck, means between said truck and bar whereby thelatter can move to make a swinging cut, means on said truck foreffecting such movement of said bar including a rotatable member adaptedto cooperate directly with flexible means connectible to swing the, bar,and truck wheel driving. mechanism including a driving element rotatableat equal angular rates withsaid rtatable member and operative onrotation to effect truck wheel drive.

30. In a mining apparatus, a wheeled truck, cutting mechanism includinga cutter bar on said truck, means between saidtruck and bar whereby thelatter can move to make a swinging cut, means on said truck foreilecting'such movement of said bar including a rotatable member adaptedto. cooperate directly with flexible means conn'ectible to swing thebar, and truck wheel driving mechanism including a driving ele mentrotatable at equal angular rates and in like directions with saidrotatable member and operative .on rotation to elfect truck Wheel drive.5

'31. In a mining apparatus, a wheeled truck, cutting mechanism includinga Cutter 7 bar on said truck, means between said truck and bar wherebythe latter can moveto make a swinging cut, means on saidtruck foreftectlng such movement of said bar 1ncluding a rotatable member adaptedto co operate directly with flexible means connectible to swing the bar,and truck driving mechanism including a driving element rotatable atequal angular rates with said rotatable member and flexible connectionsbetween said member and said truck Wheels.

32. In a mining apparatus, a wheeled truck, cutting mechanism includingacutter bar on said truck, means betweensaid truck and bar whereby thelatter canmove ;to make a swinging cut, means on said truck foreffecting such movement of said bar including a rotatable. memberadapted to cooperate directly with flexible means connectible to swingthe bar, and truck driving mechanism including a driving elementrotatable at equal angular rates and in like directions with saidrotatable member and flexible connections between said member and saidtruck. Wheels.

33 In an entry driving machine, a member adapted for movement, oftranslat on relative to, the mine bottom. towards and] from the face ofthe entry, cutting mechanism carried therebycomprising an elongatedcutter bar having cuttingelements traveling in anorbit parallel to avertical plane which is pa .al'lel to the direction of translationalmovenjientof. said member to wards and "from theface, said- -elem'entsarranged to. cut a kerf; to admit said bar and being operative whethersaid bar is pre sented endwiseor sidewise to. the material to be cut,means including a horizontal pivgt mounted on said member at a fixeddistance from the mine bottom' and disposed per pendicular 'to the planeof the orbit of said cuttingelements for permitting'said cuttingmechanism to swing during cutting to make a vertical shearing cut meansfor rigidly positioning said cutting mechanism relative to saidmember.at a plurality of angles tn a horizontal. line parallel to the pathtrans: latory movement of said member, and selt. containedpowerioperated means on Said member for feeding thelatter towards andaway from the face during cutting, while the cutting elements travel intheir orbits in one direction, and for swinging bar by power. I

3%, In all. entry driving machine, a member adapted for movement oftranslation relative to the mine bottom towards and iromthe face of theentry, cutting mechanism arrie there y in-pr s ng n l mga e ut bar havng Wil ng le n traveling in an orbit parallel to a vertical plane whichis parallel to the direction of trans at n m v ment of ai member spendicular to the plane of the orbit of said cutting elements forpermitting said cutting mechanism to swing during cutting to make avertical shearing cut, means for rigidly positioning said cuttingmechanism relative to said member at a pluralityof angles to ahorizontal line parallel to the path of translatory movement of saidmember, and self-contained power operated means on said member for feding the latter towards. and

away from the face during cutting while the cutting elements travel intheir orbits in one direction, and for swinging said bar,

power, including a driving'member rotating oppositely during oppositefeeding movements. of said first mentioned member] M 35. In an entrydriving machine, .a member adapted for movement of translation relativeto th m ls hQtiQ- evens and from the face of the entry, cuttingmechanism carried thereby comprising an elongated cutter bar havingcutting elements traveling in an orbit parallel to a vertical planewhich is parallel to the direction of translational movement of saidmember towards and from the" face, said elements arranged to cut a kerfto admit said bar and being operative whether said bar is presentedendwise or sidewise to the material to be cut, means including ahorizontal pivot mounted on said member at a fixed distance from themine bottom and disposed perpendicular to the plane of the orbit of saidcutting elements for permitting said cutting mechanism to swing duringcutting to make a vertical shearing cut, means for moving said cuttingmechanism into and locking it in a plurality of different angularrelations to a horizontal line parallel to the path of translatorymovement of said member including a rotating element, and self-containedpower operated means on said memher for feeding the latter towards andaway from the face during cutting while the cutting elements travel intheir orbits in one direction including a driving member rotatingoppositely during opposite feeding movements of said member and coaxialwith said element.

36. In an entry driving machine, a member adapted for movement oftranslation relative to the mine bottom towards and from the face of theentry, cutting mechanism carried thereby comprising an elongated cutterbar having cutting elements traveling in an orbit parallel to a verticalplane which is parallel to the direction of translational movement ofsaid member towards and from the face, said elements arranged to cut akerf to admit said bar and being operative whether said bar is presentedendwise or sidewise to the material to be cut, means including ahorizontal pivot mounted on said member at a fixed distance from themine bottom and disposed perpendicular to the plane of the orbit of saidcutting elements for permitting said cutting mechanism to swing duringcutting to make a vertical shearing cut, means for rigidly positioningsaid cutting mechanism relative to said member at aplurality of anglesto a horizontal line parallel to the path of translatory movement ofsaid member, and selfcontained power operated means on said member forfeeding the latter towards and away fromvthe face during cutting whilethe cut ting elements travel in their orbits in one direction includinga driving member rotating oppositely during opposite feeding movementsof said member and rotating rail engaging traction means driven by saiddriving member.

37. In a mining machine, a wheeled truck, cutting mechanism on saidtruck includlng a pivoted plane cutter carrying cutter bar pivoteddirectly on a horizontal pivot at the front end of said truck, means forswinging feeding and cutting mechanism,the latter including a forwardlyextending cutter bar provided with cutting elements arranged to cut akerf to admit said bar, means supported by said truck forming atransversely disposed pivot relative to which said bar is movableedgewise in a vertical plane, fiexible means for swinging said barrelative to an upstanding face to insert a vertical kerf therein, aswivel mounting disposed between said bar pivot and truck, and means foradj usting said bar pivot angularly thereon relative to said truck.

39. In a mining apparatus, a Wheeled supporting member movable along atrackway, cutting mechanism thereon including an elongated cutter barhaving orbitally moving cutting elements arranged to cut a kerf to admitsaid bar and swingable relative to a fixed axis to make a swinging cutin a vertical plane, power means for effecting downward'swinging of saidcutting mechanism during cutting, and means operative to effect oppositelongitudinal movements of said supporting member during cutting and at acutting speed without reversal of the orbital movement of said cuttingelements including a driving member rotatable in opposite directions byan element of said powermeans.

40. In a mining apparatus, a wheeled supporting member movable along atrackway, cutting mechanism thereon including an elongated cutter barhaving orbitally moving cutting elements arranged to cut a kerfto admitsaid bar and swingable relative to a fixed axis to make a swinging cutin a vertical plane, power means for effecting downward swinging of saidcutting mechanism during cutting, and means operative to effect oppositelongitudinal movements of said supporting member during cutting and at acutting speed without reversal of the orbital movement of said cuttingelements including a driving member rotatable at like speedsin oppositedirections by anelement of said power means.

a1. In a mining apparatus, a wheeled truck, a mining machine thereoncomprising cutting mechanism, actuating means there for, means formoving said cutting mechanism during cutting including a rotatableelement adapted to cooperate directly with flexible feeding means ineffecting movement of said cutting mechanism, and truck wheel drivingmechanism including a rotatable element coaxial with said firstmentioned rotatable element and operable independently for, means formoving said cutting mecha-.

nism during cutting including a rotatable element adapted to cooperatedirectly with flexible feeding means in effecting movement of saidcutting mechanism, and truck wheel driving mechanism operative to forcesaid bar to a position substantially fully in the coal and including arotatable element coaxial with said first mentioned rotatable element,each of said elements rotating on a horizontal axis.

43 In a mining apparatus, a wheeled truck, a mining machine thereoncomprising cutting mechanism, actuating means therefor, means for movingsaid cutting mechanism during cutting including a rotatable elementadapted to cooperate directly with flexible feeding means in effectingmovement of said cutting mechanism, and truck wheel driving mechanismoperative to force said bar to a position substantially fully in thecoal and including a rotatable element rotatable at an equiangular ratewith said first mentioned rotatable element.

44-. In a mining apparatus, a wheeled truck, a mining machine thereoncomprising cutting mechanism, actuating means therefor, means for movingsaid cutting mechanism, during cutting including a rotatable elementadapted to cooperate directly with flexible feeding means in effectingmovement of said cut-ting mechanism, and truck wheel driving mechanismoperative to force said bar to a position substantially fully in thecoal and including a rotatable element rotatable at an equiangular ratewith said first mentioned rotatableelement, each of said elementsrotating on a transverse axis.

45. In a mining apparatus, a wheeled truck, a frame thereon, cutting.mechanism on said frame, means on said frame'for effecting movement ofsaid cutting mechanism during cutting and including a rotatable feedoperating member rotating on a transversely extending axis, a rotatabletruck wheel driving member arranged coaxially withsaid feedoperatingmember, and means whereby said members may be rotated together, or oneby itself, at a cutting speed.

46. In a mining apparatus, a wheeled truck, a frame thereon, cuttingmechanism on said frame, means on said frame for effecting movement ofsaid cutting mechanism during cutting and including a rotatablefeedoperating member rotating on a transversely extending axis, a rotatabletruck wheel driving member arranged coax ially with said feed operatingmember, means for rotating each of said members at a cutting speed, andmeans for independently controlling one of said members.

47. In a mining apparatus, a wheeled truck, a frame thereon, cuttingmechanism on said frame, means on said frame for effecting movement ofsaid cutting mechanism during cutting and including a rotatable feedoperating member adapted to cooperate.

directly with flexible feeding means rotating on a transverselyextending axis, a rotatable truck wheel driving member arrangedcoaxially with said feed operating member, and means whereby saidmembers may be rotated together, or one by itself.

18. In a mining apparatus, a wheeled truck, a frame thereon, cuttingmechanism on said frame, means on said frame for effecting movement ofsaid cutting mechanism during cutting and including a rotatable fee-doperating member adapted to cooper-ate directly with flexible feedingmeans rotating on a transversely extending axis, a rotatable truck wheeldriving member arrange-d coaxially with said feed operating member, andmeans for independently controlling one of said members. 49. In a miningapparatus, a wheele truck movable on a trackway, cutter mechanismthereon comprising a motor and a pivotally mounted cutter chain carryingout ter bar adapted to swing in a vertical plane at the end ofv thetruck, mechanism solely supported by said truck for swinging said bar ineither direction by power in the manner described, and power operatedmeans solely supported by said truck for feeding said bar and trucklongitudinally of the trackway in opposite directions during cutting atcutting speeds and without reversal of the cutter mechanism.

50. In a mining apparatus, a wheeled truck movable on a trackway, cuttermechanism thereon comprising a motor and a pivotally mounted cutterchain carrying cutter bar adapted to swing in a vertical plane at.

the end of the truck, mechanism solely supported by said truck forswinging said bar by power in the manner described, and power operatedmeans solely supported by said truck and actuated by said motor forfeeding said bar and truck longitudinally of the trackway in oppositedirections during cutting at cutting speeds and without reversal of thecutter mechanism.

51. In a. mining apparatus, a wheeled truck movable on a trackway,cutter mechanism including a cutter bar disposable in fixed relation'atacute angles to the trackway and pivotally mountedv on said truck,

and self-contained power operated means supported on said truck foractuating the wheels of the latter to move the bar rectilinearly of thetrackway when said bar is disposed at an angle to the direction thereof1n a vertical plane, for movmg said bar relatlvely transversely in saidplane, and for actuating the wheels of said truck in the oppositedirection, to form a vertical parallel ribbed kerf of a. depthsubstantially equal to the length of the bar and in a face in front ofthe end of the traclrway.

52. In a mining apparatus, a Wheeled truck movable on a traclrway,cutter mechanism including a cutter bar disposable in fixed relation atacute angles to the track- Way and pivotally mounted on said truck, andselfecontained power operated means comprising but a single motorsupported on said truck for actuating the Wheels of the latter to movethe bar rectilinearly of the trackway when saio bar is disposed at anangle to the direction thereof in a vertical plane, for moving said barrelatively transversely in said plane, and for actuating the wheels ofsaid truck in the opposite direct'ion, to form a vertical parallelribbed kerf of a depth substantially equal to the length of the bar andin aface in front of the end of the trackway.

53. In amining apparatus, supporting means movable on a traclrway,cutter mechanism thereon comprising a pivotally mounted cutter barhaving a chain adapted to cut a vertical kerf for said bar in a facewhen said bar is presented edgewise thereto, and

self-contained power operated means for moving said bar bodilyrectilinearly of the trackway, about its pivot in the same plane, andreversely rectilinearly of the traclrway to insert a parallel ribbedkerf in a face in front of the end of the trackway, said selfcontainedpower operated means comprising wheels engageable with said trackwa-yand oppositely actuatable to effect such opposite bodily rectilinearmovements of said bar.

54-. In a mining apparatus, supporting means movable on a traclrway,cutter mechanism thereon comprising a pivotally mounted cutter barhaving a chain adapted to cut a vertical kerf for said bar in a facewhen said bar is presented edgewise thereto, and self-contained poweroperated means comprising but a single motor for moving said bar bodilyrectilinearly of the trackway, about its pivot in the same plane, and reversely rectilinearly of the trackway to insert a parallel ribbedvertical kerf ina face in front of the end of the traclrway, saidselfcontained power operated means comprising wheels engageable withsaid trackway and oppositely actuatable to effect such opposite bodilyrectilinear movements of said bar.

55. In a mining apparatiis, a wheeled truck movable on a trackway,cutter mechanism thereon comprising a motor and a pivotally mountedcutter chain carrying cutter bar swingable in a vertical plane at theend of the truck, and self-contained power operated mechanism-supportedsolely by said truck for moving said bar angularly in its verticalplane, and for actuating said truck wheels to effect reverselongitudinal bodily movements of said bar relative to said trackwayduring cuttin 56'. In a mining apparatus, a. wheeled truck movable overa trackwa-y, a mining machine supported thereon in edgewise relationthereto, and comprising cutting mechanism including a normally forwardlyextending cutter bar movable in a vertical plane about a transverselydisposed pivot, said mining machine also comprising feeding mechanism,and means connectible to said feeding mechanism for selectively movingsaid bar during cutting about said pivot or bodily therewith relative toa face to in sert a kerf in a face extending transversely of thetraclrway.

57. In a mining apparatus, a wheeled truck movable over a trackway, a.mining machine supported thereon in edgeWise relation thereto, andcomprising cutting mechanism including a normally forwardly extendingcutter bar movable in a vertical plane about a transversely disposedpivot, said mining machine also comprising feeding mechanism, and meansconnect-ible to said feeding mechanism for selectively moving said barduring cutting about said pivot or bodily therewith relative to a faceto inserta kerf in a face extending transversely of the trackway, saidlast mentioned means including truck wheel driving mechanism.

58. In a mining apparatus, a wheeled truck movable over trackway, amining machine supported thereon in edgewise relation thereto, andcomprising cutting mechanism including a normally forwardly extendingcutter bar movable in a vertical plane about a transversely disposedpivot, said mining machine also comprising feeding mechanism, and meansconnectibleto said feeding mechanism for selectively moving said barduring cutting about said pivot or bodily therewith relative to a faceto insert a. kerf in a face extending transversely of the tra'ckway,said last mentioned means including truck wheel driving mechanismoperatively connected mechanism.

59. In a mining machine, a wheeled sup port, a machine frame thereonincluding a motor, cutting mechanism at one end of said motor includinga swingable cutter bar this posed in a. vertical plane, and means foroperating said cutting mechanism and swinging said bar respectivelyconnected to opposite ends of said motor.

60. In a mining machine, a wheeled support, a machine frame thereonincluding a motor, cutting and feeding mechanisms connected to oppositeends thereof, said cutting mechanism being adjustable and disposed inllll) with said feeding ill) - a vertical plane, and means for adjustingsaid cutting mechanism driven by said feeding mechanism.

61. In a mining machine, a wheeled sup port, a machine frame thereonincluding a motor, cutting and feeding mechanisms connected to oppositeends thereof, said cutting mechanism being ustable and disposed in avertical plane, and means for adjusting said cutting mechanismconnectible at will with said feeding mechanism.

62. In a mining machine, a. wheeled support, a machine frame thereonincluding a motor, cutting and feeding mechanisms at opposite endsthereof, cutter adjusting mech anism for adjusting said cuttingmechanism in a vertical plane,and means for actuating one of saidmechanisms from-the front end of the motor and the remainder from therear end of the motor. I

63. In a mining machine, a wheeled support, a machine frame thereonmovable rectilinearly during cutting and including a motor having anaxis of rotation parallel to the direction of rectilinear movement and adriving gear element at each end thereof, cutting mechanism including acutter bar adjustable. on an axis on the front end of said frame, meansfor driving said cutting mechanism from one end of said motor, and meansfor adjusting the bar about its axis driven from theopposite end of saidmotor.

64. In a mining machine, a wheeled support, a. machine frame thereonincluding a motor, cutting mechanism including a cutter bar adjustableon a horizontal transverse axis on the front end of said frame, meansfor driving said cutting mechanism from one end of said motor, and meansfor adjusting the bar about its axis driven from the opposite end ofsaid motor.

(35. In a mining machine, a machine frame including a. motorhaving adriving gear element at each end thereof, cutting mechanism including acutter bar adjustable on an axis on the front end of said frame, meansfor driving said cutting mechanism from one end of said motor, means foradjusting the bar about its axis driven from the opposite end of saidmotor, and feeding mechanism for said frame operative to feed the samerectilinearly in opposite directions towards and from a face duringcutting and driven motor and driven from said adjustii'ig means. I

67. In a mining machine, a wheeledsupport, a machine frame thereonincluding motor, cutting mechanism at one end of said 'motor including aswinging'cutter bar dis posed in a vertical plane, and means foroperative connections between oneend of said motor and said cuttingmechanism, operative connections between the other end of said motor andsaid cutter adjusting mechanism, said cutting mechanism'being adjustableand disposed in a verticalplane, and means for feeding saidcuttingmechanism driven from said operative connections between saidcutter adjusting mechanism and said motor. 1

69. In a mining machine adapted to arcwall cutting, a wheeled truck, ashearing cutfor chain carrying cutter bar thereon, a cutter chaindriving sprocket coaxial with the pivot of said bar, a bar swingingmember movable about said bar pivot, a horizontal motor having itslongitudinal axis extending longitudinally of the truck, and operativeconnections between one end of said motor and said sprocket and betweenthe other end of said motor and said member.

70. In a mining machine, a wheeled truck, a machine frame thereon, amotor thereon having a power shaft extending longitudinally of saidframe, a cutter chain-carrying cutter bar swingable about a horizontaltransverse axis at oneend of saidnotor, motor operated cutter chaindriving means, and means driven by the end of said power shaft remotefrom said cutter bar for adjusting the latter oppositely about its axis.

71. In a mining machine, a wheeled truck, a machine frame thereonincluding amotor having a driving gear element at each end thereof,cutting mechanism including a cut er bar carrying orbitally movingcutting elements and adjustable on an axis on the front end of saidI12III1 3,I11G21DS for driving said cutting mechanism from one end ofsaid motor, and means for adjusting said bar about its axis andeffecting opposite rectilinear feeds thereof while said elementscarrying orbitally moving cutting elements and adjustable on atransverse axis on the front end of said frame to make a shearing cut,means for drivlng sald cutting mechanism from one end of said motor, andmeans for adjusting said bar about its axis and effecting oppositerectilinear feeds thereof while said elements traverse at all timestheir orbits in the same direction, said last mentioned means drivenfrom the opposite end of said motor.

73. In a mining machine, a wheeled truck, a machine frame thereonincluding a motor, cutting mechanism including a cutter bar carryingorbitally moving cutting elements and adjustable on an axis on the frontend of said frame, means for driving said cutting mechanism from one endof said motor, and means for adjusting said bar about its axis andeffecting opposite rectilinear feeds thereof while said elementstraverse at all times their orbits in the same direction, said lastmentioned means driven from the opposite end of. said motor andincluding a flexible element and rotatable means cooperating therewith.

74. In a mining machine, a wheeled track, a machine frame thereonincluding a motor, cutting mechanism including a cutter bar carryingorbitally moving cutting elements and adjustable on a transverse axis onthe front end of said frame, means for driving said cutting mechanismfrom one end of said motor, and means for adjusting said bar about itsaxis and effecting opposite rectilinear feeds thereof while saidelements traverse at all times their orbits in the same direction, saidlast mentioned means driven from the opposite end of said motor andincluding a flexible element and rotatable means cooperating therewith.

75. In a mining machine, a wheeled truck, a motor having a rotatingshaft, a frame mounted on said truck and supporting said motor, avertically swinging cutting mechanism at one end of and actuated by suchend of said motor, and means for effecting opposite rectilinear bodilymovements of said cutting mechanism and opposite swinging movements ofsaid bar actuated by the opposite end of said motor and including aflexible chain member.

76. In a mining machine, a wheeled truck, a body thereon, a horizontalmotor carried by said body and having its longitudinal axis extendinglengthwise of said truck, cutting mechanism driven from the forward endof said motor including a cutter bar pivoted on a transverse axis at thefront end of said body for vertical swinging movement, mechanism drivenfrom the rear end of said motor for swinging said cutter bar about itspivot to effect a swinging cut, and mecha nism driven from the rear endof said motor for bodily feeding said machine in opposite directions foreffecting sumping and withdrawal cuts.

77. In a mining machine, a wheeled truck, a body thereon, a horizontalmotor carried by said body and having its longitudinal axis extendinglengthwise of said truck, cutting mechanism driven from the forward. endof said motor including a cutter bar pivoted on a transverse axis at thefront end of said body for vertical swinging movement, mechanism drivenfrom the rear end of said motor for swinging said cutter bar about itspivot to efiect a swinging cut and mechanism driven from the rear ofsaid motor and connected to the truck wheels for driving the latter forbodily feeding the machine in op posite directions to effect sumping andwithdrawal cuts.

78. In a mining machine, a wheeled truck, a self propelled miningmachine disposed edgewise thereon including a cutter bar pro vided withcutting elements circulating in a plane orbit pivoted on a horizontalpivot at the front end of said truck and including a motor, feedingmechanism driven from one end of said motor operatively connected withsaid bar for swinging the same about its pivot, truck driving mechanismdriven from the same end of said motor operatively connected with. saidfeeding mechanism for feeding said truck in either direction to feedsaid bar into the work or to withdraw the same, and mechanism drivenfrom the op posite end of .said motor for actuating said cuttingelements.

79. In a mining machine, a. wheeled truck, cutting mechanism thereonincluding a cutter bar having cutting elements circulating in a verticalplane and pivoted directly on a horizontal pivot atthe front end of saidtruck and including a motor, feeding 1nechanism driven from the rear endof said motor operatively connected with said bar for swinging the sameabout its pivot, truck driving mechanism cooperating with said truckwheels and operatively oonnectible with said feeding mechanism' formoving said truck in either direction said truck driving mechanism beingdriven from the rear end of said motor and mechanism driven from thefront end of said motor. for actuating said cutting elements.

In testimony whereofI affix my signature.

CHARLES BRAND OFFICER.

